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Finding the Fourth Proportional to 144,502.20, 216,791.10 and 55,758.60

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Solution

The fourth proportional to 144,502.20, 216,791.10 and 55,758.60 is: 83,652.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,502.20 : 216,791.10 = 55,758.60 : x
  2. Step 2: Convert to fraction form
    144,502.20/216,791.10 = 55,758.60/x
  3. Step 3: Cross multiply
    144,502.20x = 216,791.10 × 55,758.60
  4. Step 4: Simplify right side
    144,502.20x = 12,087,968,228.46
  5. Step 5: Solve for x
    x = 12,087,968,228.46/144,502.20
  6. Step 6: Final answer
    x = 83,652.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.